Method of fabricating window panel and of fabricating window panel integrated type touch screen panel

ABSTRACT

A window panel for a display apparatus is provided comprising a first reinforced layer formed at a first predetermined depth from entire upper and lower surfaces, a second reinforced layer formed at a second predetermined depth from a side surface connecting an edge of the upper surface and an edge of the lower surface, and a non-reinforced portion formed at at least a portion of the side surface.

This application claims the benefit of Korea Patent Application No.10-2010-0123829 filed on Dec. 6, 2010, the entire contents of which isincorporated herein by reference for all purposes as if fully set forthherein.

BACKGROUND

Field

The embodiments of this document are directed to a window panel for adisplay apparatus and a method of manufacturing the window panel, and awindow panel integrated type touch screen and a method of manufacturingthe touch screen.

Related Art

Display apparatuses, such as liquid crystal displays, field emissiondisplays (FEDs), electroluminescent displays, and plasma display paneldisplays, attract attention due to high response speed, low powerconsumption, and high color reproduction ratio. Such display apparatusesare used for various electronics including TVs, computer monitors,laptop computers, mobile phones, displays for refrigerators, personaldigital assistants, automated teller machines. In general, these displayapparatuses constitute an interface with users using various inputdevices, such as a keyboard, mouse, digitizers, or more. However, thekeyboard or mouse is disadvantageous in that a user needs to learn howto use and it occupies a space. In response to increased demand forsimple and less malfunctioned input devices, touch screen panels havebeen suggested that allow a user to directly input information withhis/her hand or pen.

Because the touch screen panel has a simple configuration, whichminimizes erroneous operations, the user can perform an input actionwithout using a separate input device, and can quickly and easilymanipulate through contents displayed on a screen. Accordingly, thetouch screen panel has been applied to various display devices. Suchtouch screen panels are weak in scratches or bending when information isinput on the touch screen panel using fingers or pen, and thus require awindow panel to be attached thereon in order to prevent the touch screenpanels from being scratched and bended. However, adding the window panelleads to an increase in thickness of the entire touch screen panel.

Accordingly, there have been suggested methods of fabricating a touchscreen panel by reinforcing a window panel and then forming touchelectrodes on a surface of the window panel. This method eliminates theneed of a separate substrate for the touch screen panel, thus resultingin a decrease in thickness of the touch screen panel.

Such fabricating methods include a cell unit window panel fabricatingmethod and a sheet unit window panel fabricating method. In the cellunit window panel fabricating method, a whole sheet glass substrate iscut into a plurality of cells and the cells are separately subjected toa reinforcing treatment. In the sheet unit window panel fabricatingmethod, a whole sheet glass substrate is firstly reinforced and then cutinto a plurality of cells.

However, the “first-cut-and-next-reinforcement” characteristics of thecell unit window panel fabricating method cause it difficult toguarantee mass productivity. Moreover, the cell unit window panelfabricating method generally needs to use a jig when forming touchelectrodes on the cut cell unit unit window panels, which renders workhard due to x, y, and z-axis tolerances between each cell unit unitwindow panel and a seating portion of the jig on which the cell unitunit window panel is rested or a deviation of each cell unit unit windowpanel, thus resulting in a lowering of throughput.

In contrast, the sheet unit window panel fabricating method subjects awhole sheet glass substrate to a reinforcing treatment, so that timerequired for reinforcing treatment can be saved. Further, it is notnecessary to form touch electrodes on the cell unit window panels one byone, which can increase fabrication throughput.

In the conventional sheet unit window panel fabricating method, however,when the reinforced whole sheet glass substrate is cut into a pluralityof cells, loss of reinforced layers occurs at the cutoff surfacestogether with tiny cracks as shown in FIG. 1. FIG. 1 is aphotomicrography taking a picture of a cutoff surface of a reinforcedwhole sheet substrate, wherein tiny cracks are created at the cutoffsurface.

As a consequence, the conventional sheet unit window panel fabricatingmethod requires a polishing process for polishing the cutoff surfaceusing a polishing machine to remove the cracks from the cutoff surface.Further, since the cutoff surface remains with the reinforced layerslost, the cutoff surface needs to be reinforced once more to maintaindurability. As such, the conventional sheet unit substrate window panelfabricating method requires additional polishing and reinforcingprocesses.

SUMMARY

Exemplary embodiments of this document provide a window panel and amethod of manufacturing the window panel, and a window panel integratedtype touch screen panel and a method of manufacturing the touch screenpanel, which can enhance workability and productivity.

The embodiments of this document will become readily apparent byreference to the following detailed description when considered inconjunction with the accompanying drawings.

According to an embodiment, there is provided a window panel for adisplay apparatus comprising a first reinforced layer formed at a firstpredetermined depth from entire upper and lower surfaces, a secondreinforced layer formed at a second predetermined depth from a sidesurface connecting an edge of the upper surface and an edge of the lowersurface, and a non-reinforced portion formed at at least a portion ofthe side surface.

The first and second reinforced layers are formed on the entire windowpanel except for the non-reinforced portion.

The side surface of the window panel comprises front, rear, left, andright surfaces, the first reinforced layer comprises upper and lowerreinforced layers formed at the first predetermined depth from the upperand lower surfaces, respectively, of the window panel, the secondreinforced layer comprises front, rear, left, and right reinforcedlayers formed at the second predetermined depth from the front, rear,left, and right surfaces, respectively, and the non-reinforced portionis formed at a part of at least one of the front, rear, left, and rightsurfaces.

The non-reinforced portion is formed at a corner of the window panel toseparate the front reinforced layer from the left and right reinforcedlayers and to separate the rear reinforced layer from the left and rightreinforced layers.

The window panel comprises a window area and peripheral area, and thewindow panel comprises an ornament layer formed corresponding to theperipheral area.

According to an embodiment, there is provided a touch screen panelcomprising a window panel including a first reinforced layer formed at afirst predetermined depth from entire upper and lower surfaces, a secondreinforced layer formed at a second predetermined depth from a sidesurface connecting an edge of the upper surface and an edge of the lowersurface, and a non-reinforced portion formed at at least a portion ofthe side surface, and a touch electrode layer on a surface of the windowpanel.

According to an embodiment, there is provided a method of manufacturinga window panel comprising preparing for a transparent substrate having apredetermined size, removing portions of the transparent substrate toform a plurality of cell unit window panels connected to each other byat least one connection portion, reinforcing the plurality of cell unitwindow panels, and removing the connector from the plurality of cellunit window panels to separate the plurality of cell unit window panelsfrom each other.

According to an embodiment, there is provided a method of manufacturinga window panel integrated type touch screen panel comprising preparingfor a transparent substrate having a predetermined size, removing aportion of the transparent substrate to form a plurality of cell unitwindow panels connected to each other by at least one connectionportion, reinforcing the plurality of cell unit window panels, formingtouch electrodes on the plurality of cell unit window panels,respectively, to form a plurality of touch screen panels, and removingthe connection portion from the plurality of cell unit window panels toseparate the plurality of touch screen panels from each other.

Removing the portion of the transparent substrate to form a plurality ofcell unit window panels comprises forming a molding layer having shapesof the cell unit window panels on the transparent substrate, andremoving the portion of the transparent substrate according to themolding layer to form the plurality of cell unit window panels connectedto each other by the connection portion.

Removing the portion of the transparent substrate is performed by anyone of an etching process, a laser process, and a mechanical process.

Reinforcing the plurality of cell unit window panels comprises dippingthe plurality of cell unit window panels in a reinforcement solutioncontaining potassium nitrate.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the embodiments and are incorporated in and constitutea part of this specification, illustrate embodiments of this documentand together with the description serve to explain the principles of theembodiments of this document. In the drawings:

FIG. 1 is a phogomicrography taking a picture of cracks occurring at acutoff surface when manufacturing window panels according to aconventional sheet unit window panel fabricating method;

FIG. 2A is a perspective view illustrating a window panel according toan embodiment of this document;

FIG. 2B is a plan view illustrating a window panel according to anembodiment of this document;

FIG. 2C is a left side view illustrating the window panel shown in FIG.2B;

FIG. 2D is a cross sectional view taken along line I-I′ of FIG. 2B;

FIG. 2E is a cross sectional view taken along line II-II′ of FIG. 2B;

FIG. 3 is a cross sectional view illustrating a window panel integratedtype touch screen panel having a window panel according to an embodimentof this document;

FIG. 4A is a flowchart illustrating a method of manufacturing a windowpanel according to an embodiment of this document;

FIG. 4B is a flowchart illustrating a method of manufacturing a windowpanel according to another embodiment of this document;

FIG. 5A is a flowchart illustrating a method of manufacturing a windowpanel-integrated touch screen panel according to an embodiment of thisdocument;

FIG. 5B is a flowchart illustrating a method of manufacturing a windowpanel-integrated touch screen panel according to another embodiment ofthis document;

FIGS. 6A to 6C are plan views illustrating various embodiments of aplurality of cell unit window panels which are connected to each other;and

FIGS. 7A and 7B are cross sectional views illustrating processes formingan ornament layer on a window panel.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, embodiments of this document will be described in greaterdetail with reference to the accompanying drawings, wherein the samereference numerals may be used to denote the same or substantially thesame elements throughout the specification and the drawings.

First of all, a window panel according to an embodiment of this documentis described with reference to FIGS. 2A to 2E. FIG. 2A is a perspectiveview illustrating a window panel according to an embodiment of thisdocument, FIG. 2B is a plan view illustrating a window panel accordingto an embodiment of this document, FIG. 2C is a left side viewillustrating the window panel shown in FIG. 2B, FIG. 2D is a crosssectional view taken along line I-I′ of FIG. 2B, and FIG. 2E is a crosssectional view taken along line II-II′ of FIG. 2B.

Referring to FIGS. 2A to 2D, a window panel WP includes a transparentsubstrate 100. The transparent substrate 100 includes a window area Wthrough which an image can be viewed, and a peripheral area Dsurrounding the window area W. Although in the present embodiment, thewindow panel WP includes the window area W and the peripheral area D,the embodiments of this document are not limited thereto. For example,the window panel WP may include an ornament layer (not shown) that isformed corresponding to the peripheral area D of the transparentsubstrate 100.

The window area W receives a touch input as well as displays an imageoutput through a display apparatus. The peripheral area D is an area forprinting a trademark or logo of a display maker or communication serviceprovider or for forming an ornament layer thereon. The peripheral area Dalso functions to conceal wires for a touch screen panel when the windowpanel WP is applied onto a touch screen.

The window panel WP includes a rectangular transparent substrate 100with top, bottom, front, rear, left, and right surfaces. An upperreinforced layer 110 a and a lower reinforced layer 110 b are formed ata predetermined thickness on the entire top surface and bottom surface,respectively, of the transparent substrate 100. As shown in FIG. 2B, afront reinforced layer 110 c, rear reinforced layer 110 d, a leftreinforced layer 110 e, and a right reinforced layer 110 f arerespectively formed at a predetermined thickness on parts of the front,rear, left, and right surfaces. The parts without the reinforced layers110 c, 110 d, 110 e, and 110 f form a non-reinforced portion 120.

According to an embodiment of this document, the non-reinforced portion120 is formed at corners of the transparent substrate 100, for example,at portions where the front surface of the transparent substrate 100meets the left and right surfaces of the transparent substrate 100 andportions where the rear surface of the transparent substrate 100 meetsthe left and right surfaces of the transparent substrate 100. As aconsequence, the non-reinforced portion 120 separates the frontreinforced layer 110 c from the left and right reinforced layers 110 eand 110 f and separates the rear reinforced layer 110 d from the leftand right reinforced layers 110 e and 110 f.

However, the embodiments of this document are not limited thereto. Forexample, according to an embodiment of this document, the non-reinforcedportion 120 may be formed at least one of the portions where the frontsurface of the transparent substrate 100 meets the left and rightsurfaces of the transparent substrate 100 and the portions where therear surface of the transparent substrate 100 meets the left and rightsurfaces of the transparent substrate 100. According to an embodiment ofthis document, the non-reinforced portion 120 may be formed at part ofat least one of the front, rear, left, and right surfaces of thetransparent substrate 100.

According to embodiments of this document, the window panel may havevarious shapes, such as a circle, an ellipse, a polygon, or acombination thereof. In this case, the non-reinforced portion 120 isformed at at least one part of a side surface connecting a top edgeportion of the transparent substrate 100 to a bottom edge portion of thetransparent substrate 100.

FIG. 3 is a cross sectional view illustrating a window panel integratedtype touch screen panel having a window panel according to an embodimentof this document.

Referring to FIG. 3, a window panel integrated type touch screen panelTSP includes a window panel WP and a touch electrode layer TS on asurface of the window panel WP.

The window panel integrated type touch screen panel TSP according to thepresent embodiment allows the window panel WP to serve as a substrate ofthe touch screen panel TSP, thus decreasing the thickness of the entiredevice.

Referring to FIG. 4A, a method of manufacturing a window panel accordingto an embodiment of this document is described. FIG. 4A is a flowchartillustrating a method of manufacturing a window panel according to anembodiment of this document.

Referring to FIG. 4A, a method of manufacturing a window panel accordingto an embodiment includes the steps of preparing for a whole sheettransparent substrate having a predetermined size (S100), forming amolding layer including a shape of a plurality of cell unit windowpanels on the whole sheet transparent substrate (S110), removing apredetermined portion of the transparent substrate according to theshape of the molding layer to form the plurality of cell unit windowpanels (S120), reinforcing the plurality of cell unit window panels(S130), and separating the plurality of cell unit window panels fromeach other (S140).

Each step is now described in greater detail.

In step S100, a whole sheet transparent substrate having a predeterminedsize is prepared.

In step S110, a molding layer is formed on the whole sheet transparentsubstrate. The molding layer has a shape of cell unit window panels tobe formed. The cell unit window panels are connected to each other by atleast one connector not to be separated from each other.

In step S120, an etchant is jetted over the whole sheet transparentsubstrate having the molding layer formed thereon, and portions with nomolding layer formed are etched out, thereby forming a plurality of cellunit window panels connected to each other by connection portions.

As methods of forming the plurality of cell unit window panels connectedto each other according to the shape of the molding layer after theformation of the molding layer, a photolithography method, CNC(Computerized Numerical Control) mechanical method, or laser cuttingmethod are present.

The photolithography method first coats a photosensitive resin on thewhole sheet transparent substrate so that a shape of cell unit windowpanels to be formed is obtained, and then, irradiates UV rays thereon toform a cured portion and a non-cured portion. Thereafter, the non-curedportion is removed by an etchant, thereby forming the plurality of cellunit window panels connected to each other by at least one connectionportion.

In the CNC mechanical method, after coating a photosensitive resin onthe whole sheet transparent substrate, UV rays are irradiated onto thephotosensitive resin to form a cured portion and a non-cured portion.Thereafter, the non-cured portion is eliminated by applying ultra microsand powder-contained air onto the non-cured portion while moving theCNC machine in X and Y directions according to a CNC process program.Also by this CNC mechanical method, a plurality of cell unit windowpanels connected to each other by at least one connection portion can beformed.

As other mechanical methods for forming the plurality of cell unitwindow panels, a scribing process and breaking process can be adopted.The scribing process forms cut-off lines on the transparent substrateusing a diamond pen having hardness higher than that of the transparentsubstrate. The breaking process cuts the transparent substrate byexerting a force onto the cut-off lines.

In the laser cutting method, laser beams are illuminated onto the wholesheet substrate having the molding layer to cut off a part of thetransparent substrate according to the shape of the molding layer,thereby forming the plurality of cell unit window panels connected toeach other by at least one connection portion.

In step S130, the plurality of interconnected cell unit window panelsformed in step S120 are reinforced by heat or chemical treatment.

In the case that the window panels are formed of glass, the chemicaltreatment is used. In the chemical treatment, the interconnected cellunit window panels are dipped into a reinforcement solution containingpotassium nitrate and ceramic pigment liquid at a temperature rangingfrom about 400° C. to about 500° C. for about 4 hours to about 5 hours.Then, sodium ions (relatively smaller size ions) in the glass arereplaced with potassium ions (relatively larger size ions) in thepotassium nitrate solution. That is, sodium ions are emitted from theglass to leave empty portions in the glass, and potassium ions start tofill the empty portions, thus resulting in rise of the surface densityof the glass. Therefore, surface reinforcement of the glass is achieved.As a consequence, the reinforced layers 110 a to 110 f as shown in FIGS.2A to 2E are formed at the cut-off portions of the whole sheettransparent substrate without a change in thickness. The ceramic pigmentliquid functions to make the glass look better in color as well as toreinforce the glass.

Although in the present embodiment the reinforcement solution containspotassium nitrate and ceramic pigment liquid, the embodiments of thisdocument are not limited thereto. For example, according to anembodiment of this document, the composition of the reinforcementsolution can vary depending on material for the window panels. Accordingto an embodiment of this document, any other materials that can performsurface reinforcement can be used for the reinforcement solution.

As described above, the plurality of cell unit window panels WPconnected to each other by connection portions, such as connectionportions 105 of FIGS. 6A to 6C to be described infra, are dipped alltogether in the reinforcement solution, which can significantly reducetime required for reinforcement compared to reinforcing the cell unitwindow panels WP one by one.

In step S140, the connection portions, such as the connection portions105 of FIGS. 6A to 6C to be described below, are removed to separate theplurality of cell unit window panels WP from each other, thereby formingwindow panels independent from each other.

Referring to FIG. 4B, a method of manufacturing a window panel accordingto an embodiment is described. FIG. 4B is a flowchart illustrating amethod of manufacturing a window panel according to an embodiment.

Referring to FIG. 4B, a method of manufacturing a window panel accordingto an embodiment includes the steps of preparing for a whole sheettransparent substrate having a predetermined size (S200), removing apredetermined portion of the transparent substrate to form a pluralityof cell unit window panels (S210), reinforcing the plurality of cellunit window panels, and separating the plurality of cell unit windowpanels from each other (S230).

The manufacturing method illustrated in FIG. 4B is the same orsubstantially the same as the manufacturing method illustrated in FIG.4A except for forming the plurality of cell unit window panels using alaser cutting method or mechanical processing method without forming amolding layer. Accordingly, to avoid repetitive description, only a step(S210) of forming a plurality of cell unit window panels is described.

In step S210, a plurality of cell unit window panels are formed using amechanical method or laser cutting method.

In accordance with the mechanical method, the transparent substrate iscut according to a program input with a shape of cell unit window panelsto be formed, thereby forming a plurality of cell unit window panelsconnected to each other by at least one connection portion.

In the laser cutting method, laser beams are irradiated onto the wholesheet transparent substrate based on a program input with a shape ofcell unit window panels to be formed to cut off a portion of thetransparent substrate, thereby forming a plurality of cell unit windowpanels connected to each other by at least one connection portion.

Next, a method of manufacturing a window panel integrated type touchscreen panel according to an embodiment of this document is describedwith reference to FIG. 5A. FIG. 5A is a flowchart illustrating a methodof manufacturing a window panel integrated type touch screen panelaccording to an embodiment of this document.

Referring to FIG. 5A, a method of manufacturing a window panelintegrated type touch screen panel according to an embodiment of thisdocument includes the steps of preparing for a whole sheet transparentsubstrate having a predetermined size (S300), forming a molding layerhaving a shape of a plurality of cell unit window panels to be formed onthe whole sheet transparent substrate (S310), removing a predeterminedportion of the transparent substrate according to the shape of themolding layer to form the plurality of cell unit window panels (S320),reinforcing the plurality of cell unit window panels (S330), forming atouch electrode layer on a surface of each of the plurality of cell unitwindow panels to form a touch screen panel (S340), separating theplurality of cell unit window panels from each other (S350), andperforming a subsequent treatment (S360).

Steps S300 to S330 illustrated in FIG. 5A are the same or substantiallythe same as steps S100 to S130 illustrated in FIG. 4A, and step S350 inFIG. 5A is the same or substantially the same as step S140 in FIG. 4A.Accordingly, to avoid repetitive description, only steps S340 to S360are described thereafter.

In step S340, touch electrode layers are formed on the plurality of cellunit window panels that has been formed in step S320 and enforced instep S330, thus forming a plurality of cell unit touch screen panels.The structure and manufacturing method of the touch screen panel do notconstitute essential part of this document, and thus detaileddescription thereof is omitted.

In step S360, it is tested whether an error is present or absent on theindependent window panel integrated type touch screen panel.

Thereafter, a method of manufacturing a window panel integrated typetouch screen panel according to an embodiment of this document isdescribed with reference to FIG. 5B. FIG. 5B is a flowchart illustratinga method of manufacturing a window panel-integrated touch screen panelaccording to an embodiment.

Referring to FIG. 5B, a method of manufacturing a window panelintegrated type touch screen panel according to an embodiment of thisdocument includes the steps of preparing for a whole sheet transparentsubstrate having a predetermined size (S400), removing a predeterminedregion of the transparent substrate to form a plurality of cell unitwindow panels (S410), reinforcing the plurality of cell unit windowpanels (S420), forming a touch electrode layer on a surface of each ofthe plurality of cell unit window panels (S430), separating theplurality of cell unit window panels from each other (S440), andperforming a subsequent treatment (S450).

Steps S400 to S420 illustrated in FIG. 5B are the same or substantiallythe same as steps S200 to S220 illustrated in FIG. 4B, and steps S430 toS450 in FIG. 5B are the same or substantially the same as steps S340 toS360 in FIG. 5A. To avoid repetitive description, detailed descriptionthereof is omitted.

FIGS. 6A to 6C illustrate shapes of the plurality of cell unit windowpanels as formed in step S120 of FIG. 4A, step S210 of FIG. 4B, stepS320 of FIG. 5A, and step S410 of FIG. 5B, wherein FIG. 6A is a planview illustrating that connection portions 105 are formed between thefront and rear surfaces of the cell unit window panels WP as viewed fromthe drawing, FIG. 6B is a plan view illustrating that connectionportions 105 are formed between the left and right surfaces of the cellunit window panels WP as viewed from the drawing, and FIG. 6C is a planview illustrating that connection portions 105 are formed at corners ofthe cell unit window panels WP as viewed from the drawing. In FIGS. 6Ato 6C, the reference numeral 100 refers to a whole sheet transparentsubstrate, and the reference numeral 103 refers to openings that areformed by removing parts of the whole sheet transparent substrate 100.

Although in FIGS. 6A to 6C two connection portions 105 (refer to FIGS.6A and 6B) or four c connection portions 105 (refer to FIG. 6C) areprovided for each of the plurality of cell unit window panels WP, theembodiments of this document are not limited thereto. For instance,according to embodiments, the connection portions 105 may be varied inshape and number so that the plurality of cell unit window panels WP arenot separated independently from each other. As long as such functioncan be achieved, any position or number of the connectors 105 may beavailable.

FIGS. 7A and 7B are cross sectional views illustrating forming anornament layer on a window panel WP.

Referring to FIG. 7A, a non-conductive film 200 is coated on a surfaceof a cell unit window panel WP. The formation of the non-conductive film200 is achieved by deposition of a non-conductive metal, non-conductiveoxide, or non-conductive nitride in the vacuum atmosphere.

Next, as shown in FIG. 7B, non-conductive ink is applied on ornamentportions D of the non-conductive film 200 using a silkscreen printer andthen dried using, e.g., a hot air drier. Then, the non-conductive film200 is removed from a window area of the window panel while leaving theornament portions D, thereby forming an ornament layer DL having theornament portions D and window area W.

According to the embodiments of this document, the plurality of cellunit window panels are reinforced all together while being connected toeach other by the connection portions. Accordingly, workability andfabrication throughput can be remarkably enhanced compared to theconventional manufacturing methods of cell unit window panels.

Further, touch electrode layers are formed on the plurality of cell unitwindow panels, thereby forming a plurality of touch screen panels.Accordingly, a jig is unnecessary that is used when manufacturing touchscreen panels on a cell unit window panels. As a consequence, it is notrequired to consider x, y, and z-axis directional tolerances between aseating portion of the jig and each cell unit window panel and adeviation of each cell unit window panel, thereby resulting in anenhancement in workability and throughput.

Further, the connection portions are provided at only some part of thecell unit window panels. Thus, even when the connection portions areremoved, the likelihood of damage to the entire product due to crackscan be substantially reduced since the non-reinforced portions arepresent only at the areas where the connection portions are formed.

The embodiments of this document have been explained above withreference to the accompanying drawings. It will be evident to thoseskilled in the art that various modifications may be made theretowithout departing from the broader spirit and scope of the embodiments.Further, although the embodiments have been described in the context itsimplementation in particular environments and for particularapplications, those skilled in the art will recognize that theusefulness of the embodiments is not limited thereto and that theembodiments can be beneficially utilized in any number of environmentsand implementations. The foregoing description and drawings are,accordingly, to be regarded in an illustrative rather than a restrictivesense.

1-6. (canceled)
 7. A method of manufacturing a window panel comprising:preparing for a transparent substrate having a predetermined size;removing portions of the transparent substrate to form a plurality ofcell unit window panels connected to each other by at least oneconnection portion; reinforcing the plurality of cell unit windowpanels; and removing the connection portion from the plurality of cellunit window panels to separate the plurality of cell unit window panelsfrom each other.
 8. The method of claim 7, wherein removing the portionof the transparent substrate to form a plurality of cell unit windowpanels comprises: forming a molding layer having shapes of the cell unitwindow panels on the transparent substrate; and removing the portions ofthe transparent substrate according to the molding layer to form theplurality of cell unit window panels connected to each other by theconnection portion.
 9. The method of claim 8, wherein removing theportion of the transparent substrate is performed by any one of anetching process, a laser process, and a mechanical process.
 10. Themethod of claim 7, wherein reinforcing the plurality of cell unit windowpanels comprises dipping the plurality of cell unit window panels in areinforcement solution.
 11. A method of manufacturing a windowpanel-integrated touch screen panel comprising: preparing for atransparent substrate having a predetermined size; removing portions ofthe transparent substrate to form a plurality of cell unit window panelsconnected to each other by at least one connection portion; reinforcingthe plurality of cell unit window panels; forming touch electrodes onthe plurality of cell unit window panels, respectively, to form aplurality of touch screen panels; and removing the connection portionfrom the plurality of cell unit window panels to separate the pluralityof touch screen panels from each other.
 12. The method of claim 11,wherein removing the portion of the transparent substrate to form aplurality of cell unit window panels comprises: forming a molding layerhaving shapes of the cell unit window panels on the transparentsubstrate; and removing the portions of the transparent substrateaccording to the molding layer to form the plurality of cell unit windowpanels connected to each other by the connection portion.
 13. The methodof claim 12, wherein removing the portion of the transparent substrateis performed by any one of an etching process, a laser process, and amechanical process.
 14. The method of claim 11, wherein reinforcing theplurality of cell unit window panels comprises dipping the plurality ofcell unit window panels in a reinforcement solution.